(http://i.imgur.com/fPmwCLw.png)Guerrilla warfare in the Peninsular War refers to the armed actions carried out by non-regular troops against Napoleon's Grand Armée in Spain and Portugal during the Peninsular War. These armed men were constant source of harassment to the French army, as described by a Prussian officer fighting for the French: "Wherever we arrived, they disappeared, whenever we left, they arrived — they were everywhere and nowhere, they had no tangible center which could be attacked."A list drawn up in 1812 puts the figure of such irregular troops in Spain alone at 38,520 men, divided into 22 guerrilla bands.